#378258
Closest named color: Sea Green (#2E8B57). oklch(54.7% 0.1 156.3), rgb(55, 130, 88).
Aa
White text reads best on this color (4.67:1).
About this color
#378258 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.100 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.028 away. White text reads best on it, at 4.67:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.49:1 |
| White text | 4.67:1 |
Values
| HEX | #378258 |
| RGB | rgb(55, 130, 88) |
| HSL | hsl(146, 41%, 36%) |
| OKLCH | oklch(54.7% 0.1 156.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #378258 | 4.67:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #378258 | 4.49:1 | AA large text | Lc 31.9 | Non-text elements, placeholder text |
| #378258 text on white | 4.67:1 | AA | Lc 72.2 | Content text, not long reading |
| #378258 text on black | 4.49:1 | AA large text | Lc -29.5 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CDDED2
oklch(88.4% 0.024 155.1)
-
Step 300
300
#AACAB5
oklch(81% 0.045 156.5)
-
Step 400
400
#7BAE8E
oklch(70.6% 0.072 156.5)
-
Step 500
500
#579A72
oklch(63% 0.092 156.3)
-
Step 600
600 (this color)
#378258
oklch(54.7% 0.1 156.3)
-
Step 700
700
#2B704A
oklch(49% 0.093 156.3)
-
Step 800
800
#255B3D
oklch(42.6% 0.077 156.5)
-
Step 900
900
#244B34
oklch(37.7% 0.06 156.1)
-
Step 950
950
#162C1F
oklch(27% 0.037 156.8)
#378258 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #817955 | 0.090 |
| Deuteranopia (no green cones) | #77715B | 0.089 |
| Tritanopia (no blue cones) | #1F8177 | 0.048 |
| Achromatopsia (no color) | #747474 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378258
#378258
oklch(54.7% 0.1 156.3)
- #955987
#955987
oklch(54.7% 0.1 336)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #378258, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.028
- Dark Sage #598556 ΔE 0.036
- Jungle Green #048243 ΔE 0.041
- Viridian #1E9167 ΔE 0.043
- Military Green #667C3E ΔE 0.052
- Fern Green #548D44 ΔE 0.055
- Light Forest Green #4F9153 ΔE 0.055
- Swamp #698339 ΔE 0.060
Use #378258 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.